A third woman considered filing a workplace complaint against Herman Cain at the National Restaurant Association over what was termed aggressive and unwanted behavior, with invitations to his corporate apartment, according to a report in the Associated Press. Meanwhile, a radio host in Iowa said that the candidate had made "awkward" and "inappropriate" comments to staffers at the station during a visit earlier this year.

Cain has already denounced the two previous allegations of sexual harassment against him as false, and suggested at least one of the women was a poor worker. But an ABC News investigation found that both women are highly respected professionals who have gone on to successful careers in and around government.

One woman in Maryland has worked for years as a public spokesperson for various agencies of the federal government.

Her case appears to be the one Cain has described in his round of interviews, saying she was a writer working in the trade group's communications department.

Cain has said that all he could recall was making an innocuous gesture to this woman while she was in his office with the door open and his secretary just outside. "I referenced this lady's height and I was standing near her, and I did this saying, you're the same height of my wife, because my wife is five feet tall and she comes up to my chin," Cain explained. "This lady's five feet tall and she came up to my chin. So obviously she thought that that was too close for comfort. It showed up in the actual allegation."

A lawyer for the woman, Joel Bennett, later called CNN to dispute Cain's version of events. "To the extent he's made statements that he never sexually harassed anyone," said Bennett, "and there was no validity to these complaints, that's certainly not true with respect to my client's complaints."

On Wednesday evening, Bennett said he had met with his client and that although she wants to restore her reputation and validate her claims, she has decided not to make any public appearances. He said he would likely issue a statement on Thursday on her behalf that contests Cain's version of events.